Arch widths Sample (n = 52)
r r2 P
Maxillae interpremolar 0.64 0.41 ≤ 0.05
Maxillae intermolar 0.49 0.24 ≤ 0.05
Mandible interpremolar 0.59 0.35 ≤ 0.05
Mandible intermolar 0.49 0.24 ≤ 0.05